arraync

Async Array methods polyfills

Note: The methods introduced by this library are not part of any ECMAScript standard or proposal

Install

npm install --save arraync

Setup

import 'arraync';

Features and Usage

• forEachAsync<T>(callback: Func<T, Promise<any>>, thisArg?: any): Promise<void>;

await myArray.forEachAsync(async (item) => {
  await doSomethingAsync(item); 
});

• everyAsync<T>(predicate: Func<T, Promise<boolean>>, thisArg?: any): Promise<boolean>;

const isEvery = await myArray.everyAsync(async (item) => {
  return await doSomethingAsync(item); 
});

• someAsync<T>(predicate: Func<T, Promise<boolean>>, thisArg?: any): Promise<boolean>;

const isSome = await myArray.someAsync(async (item) => {
  return await doSomethingAsync(item); 
});

• filterAsync<T>(predicate: Func<T, Promise<boolean>>, thisArg?: any): Promise<T[]>;

const filteredArray = await myArray.filterAsync(async (item) => {
  return await doSomethingAsync(item); 
});

• findAsync<T>(predicate: Func<T, Promise<boolean>>, thisArg?: any): Promise<T>;

const foundItem = await myArray.findAsync(async (item) => {
  return await doSomethingAsync(item); 
});

• findIndexAsync<T>(predicate: Func<T, Promise<boolean>>, thisArg?: any): Promise<number>;

const foundIndex = await myArray.findIndexAsync(async (item) => {
  return await doSomethingAsync(item); 
});

• mapAsync<T, T1>(callback: Func<T, Promise<T1>>, thisArg?: any): Promise<T1[]>;

const mappedArray = await myArray.mapAsync(async (item) => {
  return await doSomethingAsync(item); 
});